With the new Legacy of Xan booster, a set of new and interesting NCUs were added as well. These come in 4 different sorts which will be covered later in the guide. These are the items you will require:

Each Memory Cell added to the NCU bumps its QL by a great amount depending on the QL of the NCU if you are
not using the QL adjustment slider in the tradeskill window. So be extra careful if you want low QL NCUs.

QL of NCU

QLs bumped

225-249

9

250-274

10

275-300

11

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NCU Memory NCU

NCU Memory exclusively buffs your NCU, at QL300 it will buff a massive 192 NCU once you have added 6 Memory Cells to it.

The Weapons NCUs can buff all the various weapon skills by up to 6 per NCU. However unlike the Nano and Abilities NCU it can only buff one single weapon skill at a time.
Below is an example of adding a 1-Hand Blunt Memory Cell to a Base NCU: